rc/zsh-syntax-highlighting/highlighters/pattern/pattern-highlighter.zsh
2015-11-07 18:09:26 +01:00

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# -------------------------------------------------------------------------------------------------
# Copyright (c) 2010-2011 zsh-syntax-highlighting contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted
# provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions
# and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of
# conditions and the following disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
# may be used to endorse or promote products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# -------------------------------------------------------------------------------------------------
# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
# vim: ft=zsh sw=2 ts=2 et
# -------------------------------------------------------------------------------------------------
# List of keyword and color pairs.
typeset -gA ZSH_HIGHLIGHT_PATTERNS
# Whether the pattern highlighter should be called or not.
_zsh_highlight_pattern_highlighter_predicate()
{
_zsh_highlight_buffer_modified
}
# Pattern syntax highlighting function.
_zsh_highlight_pattern_highlighter()
{
setopt localoptions extendedglob
local pattern
for pattern in ${(k)ZSH_HIGHLIGHT_PATTERNS}; do
_zsh_highlight_pattern_highlighter_loop "$BUFFER" "$pattern"
done
}
_zsh_highlight_pattern_highlighter_loop()
{
# This does *not* do its job syntactically, sorry.
local buf="$1" pat="$2"
local -a match mbegin mend
local MATCH; integer MBEGIN MEND
if [[ "$buf" == (#b)(*)(${~pat})* ]]; then
region_highlight+=("$((mbegin[2] - 1)) $mend[2] $ZSH_HIGHLIGHT_PATTERNS[$pat]")
"$0" "$match[1]" "$pat"; return $?
fi
}